diff --git a/metadata/dev.linwood.butterfly.nightly.yml b/metadata/dev.linwood.butterfly.nightly.yml
index d7d8a31d24..973d8e4d22 100644
--- a/metadata/dev.linwood.butterfly.nightly.yml
+++ b/metadata/dev.linwood.butterfly.nightly.yml
@@ -2298,7 +2298,7 @@ Builds:
       - app/windows
     prebuild:
       - sdkmanager 'ndk;23.1.7779620' 'ndk;26.1.10909125'
-      - export version=$(cat ../FLUTTER_VERSION)
+      - export version=$(grep "^  flutter:" pubspec.yaml | cut -d ":" -f2|head -n1)
       - pushd $$flutter$$
       - git checkout -f $version
       - popd